Brief annotation and scientific rationale:
The Project aims to study the heaviest nuclei and atoms in a comprehensive way: conducting experiments on the synthesis of elements with Z=119 and 120; synthesizing new isotopes of superheavy elements; studying  nuclear (spectroscopy) and chemical properties of superheavy elements; and investigating nuclear reaction dynamics, including multi-nucleon transfer, leading to the formation of neutron-rich heavy nuclei.

The project will be implemented mainly at the SHE Factory of JINR commissioned in 2020. The studies on nuclear reaction dynamics will be carried out at the U-400 accelerator complex before it is shut off for upgrade and will be pursued at U-400R after the facility is back in business. During the upgrade, studies on reaction dynamics and mechanisms will be carried out at the U-400M accelerator.

Expected results upon project completion:
Synthesis of new superheavy elements 119 and 120.

Synthesis of superheavy nuclei and study of their decay properties.

Study of the chemical properties of superheavy elements.

Spectroscopy of the radioactive decay of heavy and superheavy nuclei.

First experiments aimed to measure the masses of superheavy nuclei.

Study of the dynamics of heavy-ion nuclear reactions.

Expected results of the project in the current year:
Experiments at the DGFRS-2 separator of the SHE Factory aimed to study production cross sections of nuclei in reactions with ⁴⁸Са, ⁵⁰Ti, ⁵⁴Cr, ⁵⁸Fe ions and the properties of synthesized nuclei.

Test experiments for synthesizing elements with Z>118.

Experiments aimed at studying the properties of the radioactive decay (α-, β-decay, spontaneous fission properties) of short-lived isotopes with Z>100 (No, Lr, Rf, and Sg) produced in reactions with Ne, Mg, Ar, Ca, Ti, and Cr ions at the SHELS and GRAND (DGFRS-3) separators using the GABRIELA and SFiNX detecting systems.

Experiments for studying the chemical properties of Cn and Fl at the SHE Factory.

Further development of target and projectile production techniques for the synthesis of superheavy elements and study of their properties at the SHE Factory.

Investigation of mass-energy and angular distributions of fragments formed in multinucleon transfer reactions.

Study of the ^40,42,44,48Ca + ²⁰⁸Pb reactions, the influence of structure effects on the reaction mechanism, fusion–fission cross sections and quasifission, and the properties of reaction fragments.

Expected results upon project completion:
Study of the properties of the drip-line isotopes of light nuclei.

First experiments using the tritium target.

Structure of the drip-line isotopes of light nuclei in (d,p) and (d,n), (t,p), (t,a), (p,d), etc. reactions.

Studies of exotic decays, including 2-n, 4-n, and 2-p emission.

Expected results of the project in the current year:
Study of nuclei near the boundaries of nucleon stability. Conduct of the ^6,8He+⁴He experiments at the ACCULINNA-1,2 setups. Preparation for and conduct of experiments at the ACCULINNA-2 fragment separator using radioactive beams and the cryogenic targets D₂, ⁴He.

Experiments on measuring the cross sections of individual reaction channels at ACCULINNA-1 employing the MULTI spectrometer.

Development of the infrastructure of the ACCULINNA-2 fragment separator (RF kicker, tritium target complex).